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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/chromeos/device_settings_provider.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/bind_helpers.h" | |
| 9 #include "base/callback.h" | |
| 10 #include "base/file_util.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "base/string_util.h" | |
| 13 #include "base/threading/thread_restrictions.h" | |
| 14 #include "base/values.h" | |
| 15 #include "chrome/browser/browser_process.h" | |
| 16 #include "chrome/browser/chromeos/cros/cros_library.h" | |
| 17 #include "chrome/browser/chromeos/cros/network_library.h" | |
| 18 #include "chrome/browser/chromeos/cros_settings.h" | |
| 19 #include "chrome/browser/chromeos/cros_settings_names.h" | |
| 20 #include "chrome/browser/chromeos/login/signed_settings_cache.h" | |
| 21 #include "chrome/browser/chromeos/login/signed_settings_helper.h" | |
| 22 #include "chrome/browser/chromeos/login/user_manager.h" | |
| 23 #include "chrome/browser/policy/app_pack_updater.h" | |
| 24 #include "chrome/browser/policy/browser_policy_connector.h" | |
| 25 #include "chrome/browser/policy/cloud_policy_constants.h" | |
| 26 #include "chrome/browser/policy/proto/chrome_device_policy.pb.h" | |
| 27 #include "chrome/browser/ui/options/options_util.h" | |
| 28 #include "chrome/common/chrome_notification_types.h" | |
| 29 #include "chrome/installer/util/google_update_settings.h" | |
| 30 #include "content/public/browser/notification_service.h" | |
| 31 | |
| 32 using google::protobuf::RepeatedPtrField; | |
| 33 | |
| 34 namespace em = enterprise_management; | |
| 35 | |
| 36 namespace chromeos { | |
| 37 | |
| 38 namespace { | |
| 39 | |
| 40 // List of settings handled by the DeviceSettingsProvider. | |
| 41 const char* kKnownSettings[] = { | |
| 42 kAccountsPrefAllowGuest, | |
| 43 kAccountsPrefAllowNewUser, | |
| 44 kAccountsPrefEphemeralUsersEnabled, | |
| 45 kAccountsPrefShowUserNamesOnSignIn, | |
| 46 kAccountsPrefUsers, | |
| 47 kAppPack, | |
| 48 kDeviceOwner, | |
| 49 kIdleLogoutTimeout, | |
| 50 kIdleLogoutWarningDuration, | |
| 51 kPolicyMissingMitigationMode, | |
| 52 kReleaseChannel, | |
| 53 kReleaseChannelDelegated, | |
| 54 kReportDeviceActivityTimes, | |
| 55 kReportDeviceBootMode, | |
| 56 kReportDeviceLocation, | |
| 57 kReportDeviceVersionInfo, | |
| 58 kScreenSaverExtensionId, | |
| 59 kScreenSaverTimeout, | |
| 60 kSettingProxyEverywhere, | |
| 61 kSignedDataRoamingEnabled, | |
| 62 kStartUpUrls, | |
| 63 kStatsReportingPref, | |
| 64 }; | |
| 65 | |
| 66 // Upper bound for number of retries to fetch a signed setting. | |
| 67 static const int kNumRetriesLimit = 9; | |
| 68 | |
| 69 // Legacy policy file location. Used to detect migration from pre v12 ChromeOS. | |
| 70 const char kLegacyPolicyFile[] = "/var/lib/whitelist/preferences"; | |
| 71 | |
| 72 bool IsControlledSetting(const std::string& pref_path) { | |
| 73 const char** end = kKnownSettings + arraysize(kKnownSettings); | |
| 74 return std::find(kKnownSettings, end, pref_path) != end; | |
| 75 } | |
| 76 | |
| 77 bool HasOldMetricsFile() { | |
| 78 // TODO(pastarmovj): Remove this once migration is not needed anymore. | |
| 79 // If the value is not set we should try to migrate legacy consent file. | |
| 80 // Loading consent file state causes us to do blocking IO on UI thread. | |
| 81 // Temporarily allow it until we fix http://crbug.com/62626 | |
| 82 base::ThreadRestrictions::ScopedAllowIO allow_io; | |
| 83 return GoogleUpdateSettings::GetCollectStatsConsent(); | |
| 84 } | |
| 85 | |
| 86 } // namespace | |
| 87 | |
| 88 DeviceSettingsProvider::DeviceSettingsProvider( | |
| 89 const NotifyObserversCallback& notify_cb, | |
| 90 SignedSettingsHelper* signed_settings_helper) | |
| 91 : CrosSettingsProvider(notify_cb), | |
| 92 signed_settings_helper_(signed_settings_helper), | |
| 93 ownership_status_(OwnershipService::GetSharedInstance()->GetStatus(true)), | |
| 94 migration_helper_(new SignedSettingsMigrationHelper()), | |
| 95 retries_left_(kNumRetriesLimit), | |
| 96 trusted_status_(TEMPORARILY_UNTRUSTED) { | |
| 97 // Register for notification when ownership is taken so that we can update | |
| 98 // the |ownership_status_| and reload if needed. | |
| 99 registrar_.Add(this, chrome::NOTIFICATION_OWNER_KEY_FETCH_ATTEMPT_SUCCEEDED, | |
| 100 content::NotificationService::AllSources()); | |
| 101 // Make sure we have at least the cache data immediately. | |
| 102 RetrieveCachedData(); | |
| 103 // Start prefetching preferences. | |
| 104 Reload(); | |
| 105 } | |
| 106 | |
| 107 DeviceSettingsProvider::~DeviceSettingsProvider() { | |
| 108 } | |
| 109 | |
| 110 void DeviceSettingsProvider::Reload() { | |
| 111 // While fetching we can't trust the cache anymore. | |
| 112 trusted_status_ = TEMPORARILY_UNTRUSTED; | |
| 113 if (ownership_status_ == OwnershipService::OWNERSHIP_NONE) { | |
| 114 RetrieveCachedData(); | |
| 115 } else { | |
| 116 // Retrieve the real data. | |
| 117 signed_settings_helper_->StartRetrievePolicyOp( | |
| 118 base::Bind(&DeviceSettingsProvider::OnRetrievePolicyCompleted, | |
| 119 base::Unretained(this))); | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 void DeviceSettingsProvider::DoSet(const std::string& path, | |
| 124 const base::Value& in_value) { | |
| 125 if (!UserManager::Get()->IsCurrentUserOwner() && | |
| 126 ownership_status_ != OwnershipService::OWNERSHIP_NONE) { | |
| 127 LOG(WARNING) << "Changing settings from non-owner, setting=" << path; | |
| 128 | |
| 129 // Revert UI change. | |
| 130 NotifyObservers(path); | |
| 131 return; | |
| 132 } | |
| 133 | |
| 134 if (IsControlledSetting(path)) { | |
| 135 pending_changes_.push_back(PendingQueueElement(path, in_value.DeepCopy())); | |
| 136 if (pending_changes_.size() == 1) | |
| 137 SetInPolicy(); | |
| 138 } else { | |
| 139 NOTREACHED() << "Try to set unhandled cros setting " << path; | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 void DeviceSettingsProvider::Observe( | |
| 144 int type, | |
| 145 const content::NotificationSource& source, | |
| 146 const content::NotificationDetails& details) { | |
| 147 if (type == chrome::NOTIFICATION_OWNER_KEY_FETCH_ATTEMPT_SUCCEEDED) { | |
| 148 // Reload the policy blob once the owner key has been loaded or updated. | |
| 149 ownership_status_ = OwnershipService::OWNERSHIP_TAKEN; | |
| 150 Reload(); | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 const em::PolicyData DeviceSettingsProvider::policy() const { | |
| 155 return policy_; | |
| 156 } | |
| 157 | |
| 158 void DeviceSettingsProvider::RetrieveCachedData() { | |
| 159 // If there is no owner yet, this function will pull the policy cache from the | |
| 160 // temp storage and use that instead. | |
| 161 em::PolicyData policy; | |
| 162 if (!signed_settings_cache::Retrieve(&policy, | |
| 163 g_browser_process->local_state())) { | |
| 164 VLOG(1) << "Can't retrieve temp store possibly not created yet."; | |
| 165 // Prepare empty data for the case we don't have temp cache yet. | |
| 166 policy.set_policy_type(kDevicePolicyType); | |
| 167 em::ChromeDeviceSettingsProto pol; | |
| 168 policy.set_policy_value(pol.SerializeAsString()); | |
| 169 } | |
| 170 | |
| 171 policy_ = policy; | |
| 172 UpdateValuesCache(); | |
| 173 } | |
| 174 | |
| 175 void DeviceSettingsProvider::SetInPolicy() { | |
| 176 if (pending_changes_.empty()) { | |
| 177 NOTREACHED(); | |
| 178 return; | |
| 179 } | |
| 180 | |
| 181 const std::string& prop = pending_changes_[0].first; | |
| 182 base::Value* value = pending_changes_[0].second; | |
| 183 if (prop == kDeviceOwner) { | |
| 184 // Just store it in the memory cache without trusted checks or persisting. | |
| 185 std::string owner; | |
| 186 if (value->GetAsString(&owner)) { | |
| 187 policy_.set_username(owner); | |
| 188 // In this case the |value_cache_| takes the ownership of |value|. | |
| 189 values_cache_.SetValue(prop, value); | |
| 190 NotifyObservers(prop); | |
| 191 // We can't trust this value anymore until we reload the real username. | |
| 192 trusted_status_ = TEMPORARILY_UNTRUSTED; | |
| 193 pending_changes_.erase(pending_changes_.begin()); | |
| 194 if (!pending_changes_.empty()) | |
| 195 SetInPolicy(); | |
| 196 } else { | |
| 197 NOTREACHED(); | |
| 198 } | |
| 199 return; | |
| 200 } | |
| 201 | |
| 202 if (RequestTrustedEntity() != TRUSTED) { | |
| 203 // Otherwise we should first reload and apply on top of that. | |
| 204 signed_settings_helper_->StartRetrievePolicyOp( | |
| 205 base::Bind(&DeviceSettingsProvider::FinishSetInPolicy, | |
| 206 base::Unretained(this))); | |
| 207 return; | |
| 208 } | |
| 209 | |
| 210 trusted_status_ = TEMPORARILY_UNTRUSTED; | |
| 211 em::PolicyData data = policy(); | |
| 212 em::ChromeDeviceSettingsProto pol; | |
| 213 pol.ParseFromString(data.policy_value()); | |
| 214 if (prop == kAccountsPrefAllowNewUser) { | |
| 215 em::AllowNewUsersProto* allow = pol.mutable_allow_new_users(); | |
| 216 bool allow_value; | |
| 217 if (value->GetAsBoolean(&allow_value)) | |
| 218 allow->set_allow_new_users(allow_value); | |
| 219 else | |
| 220 NOTREACHED(); | |
| 221 } else if (prop == kAccountsPrefAllowGuest) { | |
| 222 em::GuestModeEnabledProto* guest = pol.mutable_guest_mode_enabled(); | |
| 223 bool guest_value; | |
| 224 if (value->GetAsBoolean(&guest_value)) | |
| 225 guest->set_guest_mode_enabled(guest_value); | |
| 226 else | |
| 227 NOTREACHED(); | |
| 228 } else if (prop == kAccountsPrefShowUserNamesOnSignIn) { | |
| 229 em::ShowUserNamesOnSigninProto* show = pol.mutable_show_user_names(); | |
| 230 bool show_value; | |
| 231 if (value->GetAsBoolean(&show_value)) | |
| 232 show->set_show_user_names(show_value); | |
| 233 else | |
| 234 NOTREACHED(); | |
| 235 } else if (prop == kSignedDataRoamingEnabled) { | |
| 236 em::DataRoamingEnabledProto* roam = pol.mutable_data_roaming_enabled(); | |
| 237 bool roaming_value = false; | |
| 238 if (value->GetAsBoolean(&roaming_value)) | |
| 239 roam->set_data_roaming_enabled(roaming_value); | |
| 240 else | |
| 241 NOTREACHED(); | |
| 242 ApplyRoamingSetting(roaming_value); | |
| 243 } else if (prop == kSettingProxyEverywhere) { | |
| 244 // TODO(cmasone): NOTIMPLEMENTED() once http://crosbug.com/13052 is fixed. | |
| 245 std::string proxy_value; | |
| 246 if (value->GetAsString(&proxy_value)) { | |
| 247 bool success = | |
| 248 pol.mutable_device_proxy_settings()->ParseFromString(proxy_value); | |
| 249 DCHECK(success); | |
| 250 } else { | |
| 251 NOTREACHED(); | |
| 252 } | |
| 253 } else if (prop == kReleaseChannel) { | |
| 254 em::ReleaseChannelProto* release_channel = pol.mutable_release_channel(); | |
| 255 std::string channel_value; | |
| 256 if (value->GetAsString(&channel_value)) | |
| 257 release_channel->set_release_channel(channel_value); | |
| 258 else | |
| 259 NOTREACHED(); | |
| 260 } else if (prop == kStatsReportingPref) { | |
| 261 em::MetricsEnabledProto* metrics = pol.mutable_metrics_enabled(); | |
| 262 bool metrics_value = false; | |
| 263 if (value->GetAsBoolean(&metrics_value)) | |
| 264 metrics->set_metrics_enabled(metrics_value); | |
| 265 else | |
| 266 NOTREACHED(); | |
| 267 ApplyMetricsSetting(false, metrics_value); | |
| 268 } else if (prop == kAccountsPrefUsers) { | |
| 269 em::UserWhitelistProto* whitelist_proto = pol.mutable_user_whitelist(); | |
| 270 whitelist_proto->clear_user_whitelist(); | |
| 271 base::ListValue& users = static_cast<base::ListValue&>(*value); | |
| 272 for (base::ListValue::const_iterator i = users.begin(); | |
| 273 i != users.end(); ++i) { | |
| 274 std::string email; | |
| 275 if ((*i)->GetAsString(&email)) | |
| 276 whitelist_proto->add_user_whitelist(email.c_str()); | |
| 277 } | |
| 278 } else if (prop == kAccountsPrefEphemeralUsersEnabled) { | |
| 279 em::EphemeralUsersEnabledProto* ephemeral_users_enabled = | |
| 280 pol.mutable_ephemeral_users_enabled(); | |
| 281 bool ephemeral_users_enabled_value = false; | |
| 282 if (value->GetAsBoolean(&ephemeral_users_enabled_value)) | |
| 283 ephemeral_users_enabled->set_ephemeral_users_enabled( | |
| 284 ephemeral_users_enabled_value); | |
| 285 else | |
| 286 NOTREACHED(); | |
| 287 } else { | |
| 288 // The remaining settings don't support Set(), since they are not | |
| 289 // intended to be customizable by the user: | |
| 290 // kAppPack | |
| 291 // kIdleLogoutTimeout | |
| 292 // kIdleLogoutWarningDuration | |
| 293 // kReleaseChannelDelegated | |
| 294 // kReportDeviceVersionInfo | |
| 295 // kReportDeviceActivityTimes | |
| 296 // kReportDeviceBootMode | |
| 297 // kReportDeviceLocation | |
| 298 // kScreenSaverExtensionId | |
| 299 // kScreenSaverTimeout | |
| 300 // kStartUpUrls | |
| 301 | |
| 302 NOTREACHED(); | |
| 303 } | |
| 304 data.set_policy_value(pol.SerializeAsString()); | |
| 305 // Set the cache to the updated value. | |
| 306 policy_ = data; | |
| 307 UpdateValuesCache(); | |
| 308 | |
| 309 if (!signed_settings_cache::Store(data, g_browser_process->local_state())) | |
| 310 LOG(ERROR) << "Couldn't store to the temp storage."; | |
| 311 | |
| 312 if (ownership_status_ == OwnershipService::OWNERSHIP_TAKEN) { | |
| 313 em::PolicyFetchResponse policy_envelope; | |
| 314 policy_envelope.set_policy_data(policy_.SerializeAsString()); | |
| 315 signed_settings_helper_->StartStorePolicyOp( | |
| 316 policy_envelope, | |
| 317 base::Bind(&DeviceSettingsProvider::OnStorePolicyCompleted, | |
| 318 base::Unretained(this))); | |
| 319 } else { | |
| 320 // OnStorePolicyCompleted won't get called in this case so proceed with any | |
| 321 // pending operations immediately. | |
| 322 delete pending_changes_[0].second; | |
| 323 pending_changes_.erase(pending_changes_.begin()); | |
| 324 if (!pending_changes_.empty()) | |
| 325 SetInPolicy(); | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 void DeviceSettingsProvider::FinishSetInPolicy( | |
| 330 SignedSettings::ReturnCode code, | |
| 331 const em::PolicyFetchResponse& policy) { | |
| 332 if (code != SignedSettings::SUCCESS) { | |
| 333 LOG(ERROR) << "Can't serialize to policy error code: " << code; | |
| 334 Reload(); | |
| 335 return; | |
| 336 } | |
| 337 // Update the internal caches and set the trusted flag to true so that we | |
| 338 // can pass the trustedness check in the second call to SetInPolicy. | |
| 339 OnRetrievePolicyCompleted(code, policy); | |
| 340 | |
| 341 SetInPolicy(); | |
| 342 } | |
| 343 | |
| 344 void DeviceSettingsProvider::DecodeLoginPolicies( | |
| 345 const em::ChromeDeviceSettingsProto& policy, | |
| 346 PrefValueMap* new_values_cache) const { | |
| 347 // For all our boolean settings the following is applicable: | |
| 348 // true is default permissive value and false is safe prohibitive value. | |
| 349 // Exceptions: | |
| 350 // kSignedDataRoamingEnabled has a default value of false. | |
| 351 // kAccountsPrefEphemeralUsersEnabled has a default value of false. | |
| 352 if (policy.has_allow_new_users() && | |
| 353 policy.allow_new_users().has_allow_new_users() && | |
| 354 policy.allow_new_users().allow_new_users()) { | |
| 355 // New users allowed, user_whitelist() ignored. | |
| 356 new_values_cache->SetBoolean(kAccountsPrefAllowNewUser, true); | |
| 357 } else if (!policy.has_user_whitelist()) { | |
| 358 // If we have the allow_new_users bool, and it is true, we honor that above. | |
| 359 // In all other cases (don't have it, have it and it is set to false, etc), | |
| 360 // We will honor the user_whitelist() if it is there and populated. | |
| 361 // Otherwise we default to allowing new users. | |
| 362 new_values_cache->SetBoolean(kAccountsPrefAllowNewUser, true); | |
| 363 } else { | |
| 364 new_values_cache->SetBoolean( | |
| 365 kAccountsPrefAllowNewUser, | |
| 366 policy.user_whitelist().user_whitelist_size() == 0); | |
| 367 } | |
| 368 | |
| 369 new_values_cache->SetBoolean( | |
| 370 kAccountsPrefAllowGuest, | |
| 371 !policy.has_guest_mode_enabled() || | |
| 372 !policy.guest_mode_enabled().has_guest_mode_enabled() || | |
| 373 policy.guest_mode_enabled().guest_mode_enabled()); | |
| 374 | |
| 375 new_values_cache->SetBoolean( | |
| 376 kAccountsPrefShowUserNamesOnSignIn, | |
| 377 !policy.has_show_user_names() || | |
| 378 !policy.show_user_names().has_show_user_names() || | |
| 379 policy.show_user_names().show_user_names()); | |
| 380 | |
| 381 new_values_cache->SetBoolean( | |
| 382 kAccountsPrefEphemeralUsersEnabled, | |
| 383 policy.has_ephemeral_users_enabled() && | |
| 384 policy.ephemeral_users_enabled().has_ephemeral_users_enabled() && | |
| 385 policy.ephemeral_users_enabled().ephemeral_users_enabled()); | |
| 386 | |
| 387 base::ListValue* list = new base::ListValue(); | |
| 388 const em::UserWhitelistProto& whitelist_proto = policy.user_whitelist(); | |
| 389 const RepeatedPtrField<std::string>& whitelist = | |
| 390 whitelist_proto.user_whitelist(); | |
| 391 for (RepeatedPtrField<std::string>::const_iterator it = whitelist.begin(); | |
| 392 it != whitelist.end(); ++it) { | |
| 393 list->Append(base::Value::CreateStringValue(*it)); | |
| 394 } | |
| 395 new_values_cache->SetValue(kAccountsPrefUsers, list); | |
| 396 } | |
| 397 | |
| 398 void DeviceSettingsProvider::DecodeKioskPolicies( | |
| 399 const em::ChromeDeviceSettingsProto& policy, | |
| 400 PrefValueMap* new_values_cache) const { | |
| 401 if (policy.has_forced_logout_timeouts()) { | |
| 402 if (policy.forced_logout_timeouts().has_idle_logout_timeout()) { | |
| 403 new_values_cache->SetInteger( | |
| 404 kIdleLogoutTimeout, | |
| 405 policy.forced_logout_timeouts().idle_logout_timeout()); | |
| 406 } | |
| 407 | |
| 408 if (policy.forced_logout_timeouts().has_idle_logout_warning_duration()) { | |
| 409 new_values_cache->SetInteger( | |
| 410 kIdleLogoutWarningDuration, | |
| 411 policy.forced_logout_timeouts().idle_logout_warning_duration()); | |
| 412 } | |
| 413 } | |
| 414 | |
| 415 if (policy.has_login_screen_saver()) { | |
| 416 if (policy.login_screen_saver().has_screen_saver_timeout()) { | |
| 417 new_values_cache->SetInteger( | |
| 418 kScreenSaverTimeout, | |
| 419 policy.login_screen_saver().screen_saver_timeout()); | |
| 420 } | |
| 421 | |
| 422 if (policy.login_screen_saver().has_screen_saver_extension_id()) { | |
| 423 new_values_cache->SetString( | |
| 424 kScreenSaverExtensionId, | |
| 425 policy.login_screen_saver().screen_saver_extension_id()); | |
| 426 } | |
| 427 } | |
| 428 | |
| 429 if (policy.has_app_pack()) { | |
| 430 typedef RepeatedPtrField<em::AppPackEntryProto> proto_type; | |
| 431 base::ListValue* list = new base::ListValue; | |
| 432 const proto_type& app_pack = policy.app_pack().app_pack(); | |
| 433 for (proto_type::const_iterator it = app_pack.begin(); | |
| 434 it != app_pack.end(); ++it) { | |
| 435 base::DictionaryValue* entry = new base::DictionaryValue; | |
| 436 if (it->has_extension_id()) { | |
| 437 entry->SetString(policy::AppPackUpdater::kExtensionId, | |
| 438 it->extension_id()); | |
| 439 } | |
| 440 if (it->has_update_url()) | |
| 441 entry->SetString(policy::AppPackUpdater::kUpdateUrl, it->update_url()); | |
| 442 list->Append(entry); | |
| 443 } | |
| 444 new_values_cache->SetValue(kAppPack, list); | |
| 445 } | |
| 446 | |
| 447 if (policy.has_start_up_urls()) { | |
| 448 base::ListValue* list = new base::ListValue(); | |
| 449 const em::StartUpUrlsProto& urls_proto = policy.start_up_urls(); | |
| 450 const RepeatedPtrField<std::string>& urls = urls_proto.start_up_urls(); | |
| 451 for (RepeatedPtrField<std::string>::const_iterator it = urls.begin(); | |
| 452 it != urls.end(); ++it) { | |
| 453 list->Append(base::Value::CreateStringValue(*it)); | |
| 454 } | |
| 455 new_values_cache->SetValue(kStartUpUrls, list); | |
| 456 } | |
| 457 } | |
| 458 | |
| 459 void DeviceSettingsProvider::DecodeNetworkPolicies( | |
| 460 const em::ChromeDeviceSettingsProto& policy, | |
| 461 PrefValueMap* new_values_cache) const { | |
| 462 new_values_cache->SetBoolean( | |
| 463 kSignedDataRoamingEnabled, | |
| 464 policy.has_data_roaming_enabled() && | |
| 465 policy.data_roaming_enabled().has_data_roaming_enabled() && | |
| 466 policy.data_roaming_enabled().data_roaming_enabled()); | |
| 467 | |
| 468 // TODO(cmasone): NOTIMPLEMENTED() once http://crosbug.com/13052 is fixed. | |
| 469 std::string serialized; | |
| 470 if (policy.has_device_proxy_settings() && | |
| 471 policy.device_proxy_settings().SerializeToString(&serialized)) { | |
| 472 new_values_cache->SetString(kSettingProxyEverywhere, serialized); | |
| 473 } | |
| 474 } | |
| 475 | |
| 476 void DeviceSettingsProvider::DecodeReportingPolicies( | |
| 477 const em::ChromeDeviceSettingsProto& policy, | |
| 478 PrefValueMap* new_values_cache) const { | |
| 479 if (policy.has_device_reporting()) { | |
| 480 if (policy.device_reporting().has_report_version_info()) { | |
| 481 new_values_cache->SetBoolean( | |
| 482 kReportDeviceVersionInfo, | |
| 483 policy.device_reporting().report_version_info()); | |
| 484 } | |
| 485 if (policy.device_reporting().has_report_activity_times()) { | |
| 486 new_values_cache->SetBoolean( | |
| 487 kReportDeviceActivityTimes, | |
| 488 policy.device_reporting().report_activity_times()); | |
| 489 } | |
| 490 if (policy.device_reporting().has_report_boot_mode()) { | |
| 491 new_values_cache->SetBoolean( | |
| 492 kReportDeviceBootMode, | |
| 493 policy.device_reporting().report_boot_mode()); | |
| 494 } | |
| 495 // Device location reporting needs to pass privacy review before it can be | |
| 496 // enabled. crosbug.com/24681 | |
| 497 // if (policy.device_reporting().has_report_location()) { | |
| 498 // new_values_cache->SetBoolean( | |
| 499 // kReportDeviceLocation, | |
| 500 // policy.device_reporting().report_location()); | |
| 501 // } | |
| 502 } | |
| 503 } | |
| 504 | |
| 505 void DeviceSettingsProvider::DecodeGenericPolicies( | |
| 506 const em::ChromeDeviceSettingsProto& policy, | |
| 507 PrefValueMap* new_values_cache) const { | |
| 508 if (policy.has_metrics_enabled()) { | |
| 509 new_values_cache->SetBoolean(kStatsReportingPref, | |
| 510 policy.metrics_enabled().metrics_enabled()); | |
| 511 } else { | |
| 512 new_values_cache->SetBoolean(kStatsReportingPref, HasOldMetricsFile()); | |
| 513 } | |
| 514 | |
| 515 if (!policy.has_release_channel() || | |
| 516 !policy.release_channel().has_release_channel()) { | |
| 517 // Default to an invalid channel (will be ignored). | |
| 518 new_values_cache->SetString(kReleaseChannel, ""); | |
| 519 } else { | |
| 520 new_values_cache->SetString(kReleaseChannel, | |
| 521 policy.release_channel().release_channel()); | |
| 522 } | |
| 523 | |
| 524 new_values_cache->SetBoolean( | |
| 525 kReleaseChannelDelegated, | |
| 526 policy.has_release_channel() && | |
| 527 policy.release_channel().has_release_channel_delegated() && | |
| 528 policy.release_channel().release_channel_delegated()); | |
| 529 } | |
| 530 | |
| 531 void DeviceSettingsProvider::UpdateValuesCache() { | |
| 532 const em::PolicyData data = policy(); | |
| 533 PrefValueMap new_values_cache; | |
| 534 | |
| 535 if (data.has_username() && !data.has_request_token()) | |
| 536 new_values_cache.SetString(kDeviceOwner, data.username()); | |
| 537 | |
| 538 em::ChromeDeviceSettingsProto pol; | |
| 539 pol.ParseFromString(data.policy_value()); | |
| 540 | |
| 541 DecodeLoginPolicies(pol, &new_values_cache); | |
| 542 DecodeKioskPolicies(pol, &new_values_cache); | |
| 543 DecodeNetworkPolicies(pol, &new_values_cache); | |
| 544 DecodeReportingPolicies(pol, &new_values_cache); | |
| 545 DecodeGenericPolicies(pol, &new_values_cache); | |
| 546 | |
| 547 // Collect all notifications but send them only after we have swapped the | |
| 548 // cache so that if somebody actually reads the cache will be already valid. | |
| 549 std::vector<std::string> notifications; | |
| 550 // Go through the new values and verify in the old ones. | |
| 551 PrefValueMap::iterator iter = new_values_cache.begin(); | |
| 552 for (; iter != new_values_cache.end(); ++iter) { | |
| 553 const base::Value* old_value; | |
| 554 if (!values_cache_.GetValue(iter->first, &old_value) || | |
| 555 !old_value->Equals(iter->second)) { | |
| 556 notifications.push_back(iter->first); | |
| 557 } | |
| 558 } | |
| 559 // Now check for values that have been removed from the policy blob. | |
| 560 for (iter = values_cache_.begin(); iter != values_cache_.end(); ++iter) { | |
| 561 const base::Value* value; | |
| 562 if (!new_values_cache.GetValue(iter->first, &value)) | |
| 563 notifications.push_back(iter->first); | |
| 564 } | |
| 565 // Swap and notify. | |
| 566 values_cache_.Swap(&new_values_cache); | |
| 567 for (size_t i = 0; i < notifications.size(); ++i) | |
| 568 NotifyObservers(notifications[i]); | |
| 569 } | |
| 570 | |
| 571 void DeviceSettingsProvider::ApplyMetricsSetting(bool use_file, | |
| 572 bool new_value) const { | |
| 573 // TODO(pastarmovj): Remove this once migration is not needed anymore. | |
| 574 // If the value is not set we should try to migrate legacy consent file. | |
| 575 if (use_file) { | |
| 576 new_value = HasOldMetricsFile(); | |
| 577 // Make sure the values will get eventually written to the policy file. | |
| 578 migration_helper_->AddMigrationValue( | |
| 579 kStatsReportingPref, base::Value::CreateBooleanValue(new_value)); | |
| 580 migration_helper_->MigrateValues(); | |
| 581 LOG(INFO) << "No metrics policy set will revert to checking " | |
| 582 << "consent file which is " | |
| 583 << (new_value ? "on." : "off."); | |
| 584 } | |
| 585 VLOG(1) << "Metrics policy is being set to : " << new_value | |
| 586 << "(use file : " << use_file << ")"; | |
| 587 // TODO(pastarmovj): Remove this once we don't need to regenerate the | |
| 588 // consent file for the GUID anymore. | |
| 589 OptionsUtil::ResolveMetricsReportingEnabled(new_value); | |
| 590 } | |
| 591 | |
| 592 void DeviceSettingsProvider::ApplyRoamingSetting(bool new_value) const { | |
| 593 NetworkLibrary* cros = CrosLibrary::Get()->GetNetworkLibrary(); | |
| 594 const NetworkDevice* cellular = cros->FindCellularDevice(); | |
| 595 if (cellular) { | |
| 596 bool device_value = cellular->data_roaming_allowed(); | |
| 597 if (!device_value && cros->IsCellularAlwaysInRoaming()) { | |
| 598 // If operator requires roaming always enabled, ignore supplied value | |
| 599 // and set data roaming allowed in true always. | |
| 600 cros->SetCellularDataRoamingAllowed(true); | |
| 601 } else if (device_value != new_value) { | |
| 602 cros->SetCellularDataRoamingAllowed(new_value); | |
| 603 } | |
| 604 } | |
| 605 } | |
| 606 | |
| 607 void DeviceSettingsProvider::ApplySideEffects() const { | |
| 608 const em::PolicyData data = policy(); | |
| 609 em::ChromeDeviceSettingsProto pol; | |
| 610 pol.ParseFromString(data.policy_value()); | |
| 611 // First migrate metrics settings as needed. | |
| 612 if (pol.has_metrics_enabled()) | |
| 613 ApplyMetricsSetting(false, pol.metrics_enabled().metrics_enabled()); | |
| 614 else | |
| 615 ApplyMetricsSetting(true, false); | |
| 616 // Next set the roaming setting as needed. | |
| 617 ApplyRoamingSetting(pol.has_data_roaming_enabled() ? | |
| 618 pol.data_roaming_enabled().data_roaming_enabled() : false); | |
| 619 } | |
| 620 | |
| 621 bool DeviceSettingsProvider::MitigateMissingPolicy() { | |
| 622 // First check if the device has been owned already and if not exit | |
| 623 // immediately. | |
| 624 if (g_browser_process->browser_policy_connector()->GetDeviceMode() != | |
| 625 policy::DEVICE_MODE_CONSUMER) { | |
| 626 return false; | |
| 627 } | |
| 628 | |
| 629 // If we are here the policy file were corrupted or missing. This can happen | |
| 630 // because we are migrating Pre R11 device to the new secure policies or there | |
| 631 // was an attempt to circumvent policy system. In this case we should populate | |
| 632 // the policy cache with "safe-mode" defaults which should allow the owner to | |
| 633 // log in but lock the device for anyone else until the policy blob has been | |
| 634 // recreated by the session manager. | |
| 635 LOG(ERROR) << "Corruption of the policy data has been detected." | |
| 636 << "Switching to \"safe-mode\" policies until the owner logs in " | |
| 637 << "to regenerate the policy data."; | |
| 638 values_cache_.SetBoolean(kAccountsPrefAllowNewUser, true); | |
| 639 values_cache_.SetBoolean(kAccountsPrefAllowGuest, true); | |
| 640 values_cache_.SetBoolean(kPolicyMissingMitigationMode, true); | |
| 641 trusted_status_ = TRUSTED; | |
| 642 // Make sure we will recreate the policy once the owner logs in. | |
| 643 // Any value not in this list will be left to the default which is fine as | |
| 644 // we repopulate the whitelist with the owner and all other existing users | |
| 645 // every time the owner enables whitelist filtering on the UI. | |
| 646 migration_helper_->AddMigrationValue( | |
| 647 kAccountsPrefAllowNewUser, base::Value::CreateBooleanValue(true)); | |
| 648 migration_helper_->MigrateValues(); | |
| 649 return true; | |
| 650 } | |
| 651 | |
| 652 const base::Value* DeviceSettingsProvider::Get(const std::string& path) const { | |
| 653 if (IsControlledSetting(path)) { | |
| 654 const base::Value* value; | |
| 655 if (values_cache_.GetValue(path, &value)) | |
| 656 return value; | |
| 657 } else { | |
| 658 NOTREACHED() << "Trying to get non cros setting."; | |
| 659 } | |
| 660 | |
| 661 return NULL; | |
| 662 } | |
| 663 | |
| 664 DeviceSettingsProvider::TrustedStatus | |
| 665 DeviceSettingsProvider::PrepareTrustedValues(const base::Closure& cb) { | |
| 666 TrustedStatus status = RequestTrustedEntity(); | |
| 667 if (status == TEMPORARILY_UNTRUSTED && !cb.is_null()) | |
| 668 callbacks_.push_back(cb); | |
| 669 return status; | |
| 670 } | |
| 671 | |
| 672 bool DeviceSettingsProvider::HandlesSetting(const std::string& path) const { | |
| 673 return IsControlledSetting(path); | |
| 674 } | |
| 675 | |
| 676 DeviceSettingsProvider::TrustedStatus | |
| 677 DeviceSettingsProvider::RequestTrustedEntity() { | |
| 678 if (ownership_status_ == OwnershipService::OWNERSHIP_NONE) | |
| 679 return TRUSTED; | |
| 680 return trusted_status_; | |
| 681 } | |
| 682 | |
| 683 void DeviceSettingsProvider::OnStorePolicyCompleted( | |
| 684 SignedSettings::ReturnCode code) { | |
| 685 // In any case reload the policy cache to now. | |
| 686 if (code != SignedSettings::SUCCESS) | |
| 687 Reload(); | |
| 688 else | |
| 689 trusted_status_ = TRUSTED; | |
| 690 | |
| 691 // Clear the finished task and proceed with any other stores that could be | |
| 692 // pending by now. | |
| 693 delete pending_changes_[0].second; | |
| 694 pending_changes_.erase(pending_changes_.begin()); | |
| 695 if (!pending_changes_.empty()) | |
| 696 SetInPolicy(); | |
| 697 } | |
| 698 | |
| 699 void DeviceSettingsProvider::OnRetrievePolicyCompleted( | |
| 700 SignedSettings::ReturnCode code, | |
| 701 const em::PolicyFetchResponse& policy_data) { | |
| 702 VLOG(1) << "OnRetrievePolicyCompleted. Error code: " << code | |
| 703 << ", trusted status : " << trusted_status_ | |
| 704 << ", ownership status : " << ownership_status_; | |
| 705 switch (code) { | |
| 706 case SignedSettings::SUCCESS: { | |
| 707 DCHECK(policy_data.has_policy_data()); | |
| 708 policy_.ParseFromString(policy_data.policy_data()); | |
| 709 signed_settings_cache::Store(policy(), | |
| 710 g_browser_process->local_state()); | |
| 711 UpdateValuesCache(); | |
| 712 trusted_status_ = TRUSTED; | |
| 713 // TODO(pastarmovj): Make those side effects responsibility of the | |
| 714 // respective subsystems. | |
| 715 ApplySideEffects(); | |
| 716 break; | |
| 717 } | |
| 718 case SignedSettings::NOT_FOUND: | |
| 719 if (MitigateMissingPolicy()) | |
| 720 break; | |
| 721 case SignedSettings::KEY_UNAVAILABLE: { | |
| 722 if (ownership_status_ != OwnershipService::OWNERSHIP_TAKEN) | |
| 723 NOTREACHED() << "No policies present yet, will use the temp storage."; | |
| 724 trusted_status_ = PERMANENTLY_UNTRUSTED; | |
| 725 break; | |
| 726 } | |
| 727 case SignedSettings::BAD_SIGNATURE: | |
| 728 case SignedSettings::OPERATION_FAILED: { | |
| 729 LOG(ERROR) << "Failed to retrieve cros policies. Reason:" << code; | |
| 730 if (retries_left_ > 0) { | |
| 731 trusted_status_ = TEMPORARILY_UNTRUSTED; | |
| 732 retries_left_ -= 1; | |
| 733 Reload(); | |
| 734 return; | |
| 735 } | |
| 736 LOG(ERROR) << "No retries left"; | |
| 737 trusted_status_ = PERMANENTLY_UNTRUSTED; | |
| 738 break; | |
| 739 } | |
| 740 } | |
| 741 // Notify the observers we are done. | |
| 742 std::vector<base::Closure> callbacks; | |
| 743 callbacks.swap(callbacks_); | |
| 744 for (size_t i = 0; i < callbacks.size(); ++i) | |
| 745 callbacks[i].Run(); | |
| 746 } | |
| 747 | |
| 748 } // namespace chromeos | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 10824112:
Move Chrome OS device settings stuff to chrome/browser/chromeos/settings. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src